Systron Donner Inertial (SDI) is the world’s leading supplier of Quartz MEMS Inertial Sensing Products and Systems providing precision systems solutions to aerospace, military and commercial aircraft, marine and land vehicular applications. Our products and systems are ideally suited for use by Integrators and OEMs. As a pioneer in the development of Quartz MEMS technology utilizing a tuning-fork design, originally introduced at the heart of the company’s renown solid-state GyroChip® quartz MEMS sensor design, SDI is continuously developing leading-edge disciplines with new products which are enabling advanced performance in critical military and commercial Guidance, Navigation and Control (GN&C) applications worldwide.